Can Poorly Fitting Dentures Be Life Threatening?

April 16, 2026

A woman with denture pain.

Do you wear dentures? Do you smoke or use tobacco products? If you answered yes to either of these questions, you could be at a higher risk for developing oral cancer. Here’s a closer look at why this happens, and what you can do to help protect yourself from this life-threatening disease.

The Connection Between Oral Cancer and Dentures

While it’s true that wearing dentures does not cause cancer, there is evidence to suggest that improperly fitting dentures can contribute to oral cancer. That’s because when your prosthetics don’t fit correctly, they can create constant friction or pressure on your gums and oral mucosa. This can result in chronic inflammation which damages the cells, making them more prone to mutations which could ultimately become cancerous. In fact, a 2014 study found that wearing ill-fitting dentures can increase your risk of developing oral cancer fourfold over secure ones. Worse yet, if you smoke, use tobacco products, or frequently consume alcohol, those odds can be even higher!

Signs of Improper Denture Fit

There are many signs that could indicate your dentures don’t fit properly, and knowing  them is half the battle. Here’s a closer look at a few things to be on the lookout for:

Pressure Sores

These red spots may appear on your gums due to uneven pressure from your dentures.

Slipping or Denture Movement

If your dentures shift or slide when you speak or eat, it can cause friction and irritation.

Chewing Difficulties

If eating begins to feel painful or uncomfortable when using dentures, they may not be properly aligned.

Speech Problems

If you begin to slur your words or lisp, it could be due to a poorly fitting prosthesis.

Bad Breath or Taste in the Mouth

When food particles and bacteria become trapped underneath loose dentures, this can result in a bad odor or taste.

Remember, should you notice any of the above, or if your denture is damaged or showing any other signs of wear, it could be time to repair or replace them. Often, your dentist can perform a reline procedure that improves their fit and allows you to get a few more years of use out of them before requiring a complete replacement. Their familiarity with your oral health and dentures makes them the best person to determine which solution is best for your prosthetics and smile, so don’t hesitate to visit them today and help protect your oral and overall health with properly fitting dentures!

About Our Practice

At Kramer Dental, Dr. James K. Kramer and Dr. Paul J. Kramer are the father and son team helping to protect your healthy, beautiful smile for a lifetime. If you are suffering from any of the signs that could indicate it’s time for new dentures, don’t wait for things to get worse. Schedule a consultation with us today and let us repair or replace your current prosthetics and protect your oral and overall health in the process. To schedule your appointment, visit our website or call us directly at 302-436-5133.